Home / 2,440.84-3,368.36-1,557.15

Finding the Fourth Proportional to 2,440.84, 3,368.36 and 1,557.15

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Solution

The fourth proportional to 2,440.84, 3,368.36 and 1,557.15 is: 2,148.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.84 : 3,368.36 = 1,557.15 : x
  2. Step 2: Convert to fraction form
    2,440.84/3,368.36 = 1,557.15/x
  3. Step 3: Cross multiply
    2,440.84x = 3,368.36 × 1,557.15
  4. Step 4: Simplify right side
    2,440.84x = 5,245,046.30
  5. Step 5: Solve for x
    x = 5,245,046.30/2,440.84
  6. Step 6: Final answer
    x = 2,148.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.